Enzymes Fill In The Blank

Question 1

Enzymes are characterized by high___ for substrates.

Answer 1

specificity

Question 2

Amylase is found in saliva and in the
pancreas and breaks down starch
into ___.

Answer 2

Maltose

Question 3

Catalytic efficiency can be ___ to
___ times faster than uncatalyzed
reactions.

Answer 3

10^3, 10^17

Question 4

Catalytic efficiency can be ___ to
___ times faster than uncatalyzed
reactions.

Answer 4

10^3, 10^17

Question 5

Mild reaction conditions for
enzymes are typically at ___℃ and
physiological pH.

Answer 5

37

Question 6

Catalase breaks down hydrogen
peroxide into ___ and ___.

Answer 6

oxygen, water

Question 7

Enzymes can have small single units
to large ___ subunits.

Answer 7

Multiple

Question 8

Enzymes increase the rate of
reaction by lowering the energy of
___.

Answer 8

Activation

Question 9

Enzymes are proteins that act as ___
of biochemical reactions.

Answer 9

Catalysts

Question 10

The active site of an enzyme fits the
shape of molecules called ___.

Answer 10

Substrates

Question 11

The active site of an enzyme fits the
shape of molecules called ___.

Answer 11

Substrates

Question 12

Many active enzymes require a ___
ion, such as Zn2+ for
carboxypeptidase.

Answer 12

Metal

Question 13

Coenzymes are non-protein or
organic molecules, often ___.

Answer 13

Vitamins

Question 14

The _____ contains amino acid
R groups that align and bind the
substrate.

Answer 14

Active site

Question 15

Cofactors that are tightly bound to
an enzyme are called ___ groups

Answer 15

Prosthetic

Question 16

Isoenzymes catalyze the same
reaction in different ___ in the body.

Answer 16

Tissues

Question 17

Common names for digestion
enzymes include ___ and ___

Answer 17

pepsin, trypsin

Question 18

Hydrolases are enzymes that
catalyze ___ reactions.

Answer 18

hydrolysis

Question 19

General Acid-Base Catalysis involves
the stabilization of unstable charge
intermediates by amino acid
residues acting as weak ___ or weak
___.

Answer 19

acids, bases

Question 20

The enzyme class that facilitates the
transport or transfer of groups of
atoms is called ___.

Answer 20

Transferases

Question 21

Binding Energy accounts for the
overall lowering of ___ energy for a
reaction.

Answer 21

Activation

Question 22

___ for
oxidation-reduction reactions.

Answer 22

Oxidoreductases

Question 23

Alcohol Dehydrogenase is an
example of an enzyme name that
describes both the ___ and the ___.

Answer 23

substrate, function

Question 24

______ adding or removing atoms to form a double bond.

Answer 24

Lyases

Question 25

______ for rearranging atoms.

Answer 25

Isomerases

Question 26

_____ for using ATP to combine molecules

Answer 26

Ligases

Question 27

Increased serum activity of an
enzyme can indicate the quantity or
severity of ___ tissues.

Answer 27

damaged

Question 28

A mutation in an enzyme can alter
its substrate ___ and co-factor
binding stability.

Answer 28

affinity

Question 29

The presence of inhibitors can
decrease the activity of ___
enzymes.

Answer 29

Serum

Question 30

The binding of the substrate causes
___ of the substrate, making the
chemical reaction easier.

Answer 30

distortion

Question 31

Alkaline phosphatase activity is
used as a marker for ___ status.

Answer 31

Liver

Question 32

Chemical reactions require an initial
input of energy known as the ___
energy.

Answer 32

Activation

Question 33

Common enzymes used for clinical
diagnosis include alanine
aminotransferase (ALT) and ___
kinase.

Answer 33

Creatine

Question 34

PCR techniques are replacing
traditional enzymatic markers for
___ disease.

Answer 34

Genetic

Question 35

In metal ion catalysis, various
metals such as ____, ____, and ___
form complexes with enzymes or
substrates.

Answer 35

Zinc, iron, and copper

Question 36

Enzymes may recognize and
catalyze a single substrate, a group
of similar substrates, or a particular
type of ___.

Answer 36

Bond

Question 37

The transition state occurs between
reactant consumption and ___
formation.

Answer 37

Product

Question 38

Absolute enzymes catalyze one type
of reaction for a ___ substrate.

Answer 38

Single

Question 39

The active site is molded into a
precise conformation to make the
chemical environment ___ for the
reaction.

Answer 39

Suitable

Question 40

The induced fit hypothesis states
that when a substrate combines
with an enzyme, it induces a change
in the enzyme’s ___.

Answer 40

Conformation

Question 41

Enzyme activity is measured in
moles of substrate converted to
product per unit ___.

Answer 41

Time